I just got my Eden 410 SSC today. I am playing a Ampeg SVT 2 non-pro and I notice when I pull the trouble up past noon I get a really bad hiss. I can't really even use the ultra high on the amplifier. I am using two active basis both with p&j setups a Spector Legend and a Ibanez sr800 on the legend you can hardly even touch the treble boost without getting a terrible hiss. I'm wondering if my pickups are not too close to the strings as I often times but just to pickups higher to the strings. But I would not think this would be an issue with active pickups. The low in in mid-range is very good and it's very boomy, I'm just trying to figure out what I I need to do to utilize more treble.